Medusa is a Gorgon in ancient Greek mythology.
She was a beautiful girl and a priestess in the temple of Athena.
According to the custom at that time, the priestess had to be chaste all her life, but Medusa had an unusually beautiful face and beautiful hair.
Poseidon, one of the three main gods in ancient Greek mythology, was seduced by the beauty of Medusa, and the two secretly achieved good deeds in the temple of Athena.
Athena, the virgin God, was very angry that Medusa was not chaste. She turned Medusa's beautiful hair into poisonous snakes and cursed that any man who saw Medusa's eyes would immediately become a stone.

Perseus, whose name means "glittering", was the illegitimate son of the father Zeus.
In the city of Argos in the western part of the Greek peninsula, King Achilles had a very beautiful and lovely daughter named Danae.
Achilles loved this daughter very much, but the oracle of the temple of Delphi of the sun god told him that he would die at the hands of his grandson.
In order to prevent his daughter from getting to know men, the king built a high tower made of bronze and locked the beautiful Dana in it. No one was allowed to approach.
How can the bronze tower defeat the romantic father Zeus?
Zeus turned into a golden rain and sprinkled it through the only window of the copper tower. He met the beautiful woman Dana.
Ten months later, Dana gave birth to a healthy and lively boy named Perseus, which means "glittering".

When King Achilles learned that his grandson was still born, he planned to kill them.
However, he doted on his daughter and finally could not bear to start. So Achilles locked Dana and her son in a wooden box and threw them into the sea, leaving them to die.
Poseidon, the God of the sea, was the younger brother of Zeus. Under his protection, the wooden box drifted with the sea to an island.
The brother of the island King rescued Dana and her son. Eighteen years later, Perseus grew up and became a handsome and brave blonde boy.
The king of the island covets Dana's beauty and wants to marry her. Dana has always refused to raise Perseus. The king regarded Perseus as a thorn in his side.
A grand birthday party, the island King deliberately invited Perseus to the banquet. Perseus didn't bring any gifts, so he said that he could bring anything back to the king as long as the king spoke.
The king said that he wanted the head of Medusa, the Gorgon. He wanted to remove Perseus and let him die at Medusa's hands.

The young and competitive Perseus was completely unaware of the power of Medusa, and he agreed to the island king.
When Perseus was ready to go to find the Gorgon, a friendly old fisherman on the beach said he would help him and lent him some treasures.
It turned out that the old fisherman was the embodiment of Athena. The treasure she lent Perseus was:
A pair of shoes that can fly to the sky, a hat that can be invisible when you wear it, a leather bag that can stretch freely and can not be broken by any wild animal, and a diamond sword that cuts iron like mud.
Athena also lent him her shield.
After finding Medusa, Perseus used Athena's shield to reflect the exact position of Medusa.
He stealthily approached Medusa from behind, cut off her head with a sword, put her head in a leather bag, put on flying shoes and left quickly.
Perseus brought Medusa's head to the island king as a gift.
The island king did not believe that Perseus had succeeded. He looked into Medusa's eyes and immediately turned into a stone.